Dr KHALED AHMED
Lecturer
work
+44 (0)1224 272795
work
fax
+44 (0)1224 27-2497
pref
khaled@abdn.ac.uk
pref
Fraser Noble Building (Room 268)
Kings College
Aberdeen Scotland
United Kingdom
AB24 3UE
Lecturer
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Personal Details
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Biography
Dr. Khaled Ahmed received the B.Sc. (first class honors) and M.Sc. degrees from the Faculty of Engineering, Alexandria University, Egypt in 2002 and 2004, respectively. He received the Ph.D. degree in electrical engineering from the electronic and Electrical Engineering Department, University of Strathclyde, Glasgow, UK, 2008.
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Research Interests
- Distributed generation and microgrids for standalone and grid-connected applications
- Wind farm integration using power electronics
- MPPT control for photovoltaic grid connected systems
- Resonant converters for high voltage high power systems
- Power quality modification using active power filter
- Multilevel converters for high power application (FACTS & HVDC)
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Teaching Responsibilities
- Electrical Machines and Drives (EG40FD) and
- Electronic Systems (EG2504)
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PUBLICATIONS
JOURNAL [1] K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Passive Filter Design for Three-Phase Inverter Interfacing in Distributed Generation', Electrical Power Quality and Utilisation (EPQU) Journal May 2008, pp. 49-59. [2] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'Sensorless Current Control of Three-Phase Inverter-Based Distributed Generation' IEEE Transactions on Power Delivery Volume 24, Issue 2, April 2009 pp. 919 -929. [3] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'An Autonomous Adaptive Sensorless Controller of Inverter-Based Islanded-Distributed Generation System', IET Journal of Power Electronics, Volume 2, Issue 3, May 2009, pp. 256-266. [4] A.M. Massoud, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'A Harmonic Distortion-Based Island Detection Technique for Inverter-Based Distributed Generation', IET Journal of Renewable Power Generation, Volume 3, Issue 4, December 2009, pp. 493 - 507. [5] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'A Modified Stationary Reference Frame Based Predictive Current Control with Zero Steady-State Error for LCL Coupled Inverter-Based Distributed Generation Systems', IEEE Transactions on?Industrial?Electronics, Volume 58, Issue 4, April 2011 , pp. 1359 - 1370. [6] B.N. Alajmi, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Fuzzy Logic Controlled Approach of a Modified Hill Climbing Method for Maximum Power Point in Microgrid Stand-alone Photovoltaic System', IEEE Transactions on Power Electronics, Volume: 26, Issue: 4, April 2011, pp. 1022 - 1030. [7] M.A. Roslan, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Improved Instantaneous Average Current Sharing Control Scheme for Parallel Connected Inverter Considering Line Impedance Impact in Microgrid Networks', IEEE Transactions on Power Electronics, Volume: 26 , Issue: 3,? March 2011 , pp. 702 - 716. [8] Y.Y. Xia, K.H. Ahmed, and B.W. Williams, 'Torque ripple analysis and reduction for wind energy conversion systems using uncontrolled rectifier and boost converter', IET Journal of Renewable Power Generation, Volume 5, Issue 5, Sep. 2011, pp. 377-386. [9] Y.Y. Xia, K.H. Ahmed, and B.W. Williams, 'A New Maximum Power Point Tracking Technique for Permanent Magnet Synchronous Generator Based Wind Energy Conversion System', accepted for publishing in IEEE Transactions on Power Electronics [10] B.N. Alajmi, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'A Maximum Power Point Tracking Technique for Partially Shaded Photovoltaic Systems in Microgrids', accepted for publishing in IEEE Transactions on Industrial Electronics.
CONFERENCE [1] K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Passive Filter Design for Three-Phase Inverter Interfacing in Distributed Generation', IEEE Compatibility in Power Electronics (CPE) Conf. June 200, pp. 1-9. [2] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'Modified Current Control of Three-phase Inverter Interfacing in Distributed Generation', IEEE Power Electronics, Machines and Drives (PEMD) Conf. April 2008, pp. 401-405. [3] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'Autonomous control of a PWM Inverter in Islanded Distributed Generation with Different feedback Signals', IEEE Power Electronics, Machines and Drives (PEMD) Conf. April 2008, pp. 573-577. [4] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'Optimum Selection of State Feedback Variables PWM Inverters Control', IEEE Power Electronics, Machines and Drives (PEMD) Conf. April 2008, pp. 125-129. [5] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'Stationary Frame Predictive Current Control with Zero Steady State Error', IEEE Power Electronics Specialist Conference (PESC) June 2008,? , pp. 1495-1501 [6] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'Sensorless Modified Adaptive Kalman Filter for Current Control of a Three-Phase Inverter Based Distributed Generation', IEEE International Symposium on Industrial Electronics (ISIE) July 2008, pp. 1592-1597. [7] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'An Autonomous Adaptive Sensorless Controller of Inverter-Based Islanded Distributed Generation System', IEEE International Symposium on Industrial Electronics (ISIE) July 2008, pp. 1586 ? 1591. [8] Z.M. Shafik, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Nanocrystalline cored transformer design and implementation for a high Current low voltage DC/DC converter', IEEE Power Electronics, Machines and Drives (PEMD) Conf., April 2010, pp. 1-6. [9] A.A. Aboushady, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Steady-State Analysis of Full-Bridge Series Resonant Converter with Phase-Shift and Frequency Control', IEEE Power Electronics, Machines and Drives (PEMD) Conf., April 2010, 1-6. [10] A.A. Aboushady, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Performance Analysis of a New Modular Nano-Crystalline Core Transformer Based Converter for Medium Voltage DC Transmission Applications', IEEE Power Electronics, Machines and Drives (PEMD) Conf., April 2010, 1-6. [11] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'New Voltage Regulation Techniques for Low Voltage Radial Feed PWM Inverter Based Distributed Networks', IEEE International Symposium on Industrial Electronics (ISIE) July 2010, pp. 2241-2246. [12] A.A. Aboushady, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Discrete Time Domain Small Signal Modeling of Full Bridge Phase Shifted Series Resonant Converter' IEEE Energy Conversion Congress and Exposition (ECCE) Conf. 2010, pp. 2019-2024. [13] K.H. Ahmed, M.A. Hamad, S.J. Finney, and B.W. Williams, 'DC-Side Shunt Active Power Filter for Line Commutated Rectifiers to Mitigate the Output Voltage Harmonics' IEEE Energy Conversion Congress and Exposition ?(ECCE) Conf. 2010, pp. 151-157. [14] G.P. Adam, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'AC Fault Ride-through Capability of VSC-HVDC Transmission Systems', IEEE Energy Conversion Congress and Exposition (ECCE) ?Conf. 2010, pp. 3739-3745. [15] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'A Survey of Control Techniques for Three-Phase Inverter-Based Distributed Generation', 2nd International Conference on Microgrid 2011. [16] M.A. Roslan, K. H. Ahmed, S. J. Finney, and B. W. Williams 'Improved Control for Parallel Connected Inverters in Standalone Microgrid Networks', 2nd International Conference on Microgrid 2011. [17] A.S. Abdel-khalik, and K.H. Ahmed, 'Performance Evaluation of Grid Connected Wind Energy Conversion Systems with Five-phase Modular Permanent Magnet Synchronous Generators having Different Slot and Pole Number Combinations', IEEE International Electric Machines and Drives Conf. (IEMDC), May 2011, pp. 111- 1124. [18] G.P. Adam, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Modular Multilevel Converter for Medium-Voltage Applications', IEEE International Electric Machines and Drives Conf. (IEMDC), May 2011, pp. 1013 ? 1018. [19] Y.Y. Xia, K.H. Ahmed, and B.W. Williams, 'Different Torque Ripple Reduction Methods for Wind Energy Conversion Systems Using Diode Rectifier and Boost Converter', IEEE International Electric Machines and Drives Conf. (IEMDC), May 2011, pp. 729-734. [20] K.H. Ahmed, A.M. Massoud, S.J. Finney, and B.W. Williams, 'A Synchronous DQ Frame Controller via an LCL Coupled Filter Under Unbalanced Three-Phase Voltage Supply Conditions', International Power Engineering Energy and Electrical Drives ?(POWERENG) Conf. 2011, accepted for publishing. [21] A.A. Aboushady, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'Fuzzy Self-tuning PI Controller for Phase-Shifted Series Resonant Converters', International Power Engineering Energy and Electrical Drives (POWERENG) Conf. 2011, accepted for publishing. [22] G.P. Adam, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'H-Bridge modular multilevel converter for high-voltage applications', The 21st International Conference and Exhibition Electricity Distribution (Cired 2011). [23] K.H. Ahmed, G.P. Adam, S.J. Finney, and B.W. Williams, 'Voltage Sensorless Predictive Current Control with Interfacing Parameter Estimation for Grid Connected Converter Operation', IEEE PowerTech, 2011, accepted for publishing. [24] G.P Adam, K.H Ahmed, N.K Singh, S.J Finney, and B.W Williams, 'A Hybrid Multilevel Converter for Medium and High Voltage Applications' IEEE PowerTech, 2011, accepted for publishing. [25] B.N. Alajmi, K.H. Ahmed, G.P. Adam, S.J. Finney, and B.W. Williams, 'Modular multilevel inverter with maximum power point tracking for grid connected photovoltaic application', IEEE International Symposium on Industrial Electronics (ISIE) June 2011, pp. 2057 -2062. [26] G.P. Adam, B.N. Alajmi, K.H. Ahmed, S.J. Finney, and B.W. Williams, 'New flying capacitor multilevel converter', IEEE International Symposium on Industrial Electronics (ISIE) June 2011, pp. 335- 339.
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